(ii) (ρ <=< γ) <=< φ = ρ <=< (γ <=< φ)
(iii.1) (unit G') <=< γ = γ
when γ is a natural transformation from some FG' to MG'
(ii) (ρ <=< γ) <=< φ = ρ <=< (γ <=< φ)
(iii.1) (unit G') <=< γ = γ
when γ is a natural transformation from some FG' to MG'